Umbrella



E. R. CHASEJ UMBRELLA.

APPILICATION FILED 001715, 1920.

'1 397,794, Patented Nov. 22, 1921.

UNITED STATES PATENT OFFICE.

UMBRELLA.

Specification of Letters Patent.

Patented Nov. 22,1921.

Application filed October 15, 1920. serial No. 417,121.

To all whom it may concern Be it known that I, EDWIN ROMEYN Cause, acitizen of the United States, residing at Sacramento, in the county ofSacramento and State of California, have invented a new and usefulUmbrella, of which the following is a specification.

This invention relates to umbrellas, one of its objects being to providetrussed ribs whereby the umbrella is strengthened and although given anincreased spread, is better able to withstand the'action of strong windsthan are umbrellas of the usual construction.

Another object is to provide an umbrella which, when folded, has theappearance of an ordinary umbrella but which, when raised, providesgreater clearance under the top because the stretchers are shiftable tohigher positions on the rod than is possible with the usual stretchers.

l/Vith the foregoing and other objects in view, which will appear as thedescription proceeds, the invention resides in the combi nation andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that, within the scope ofwhat is claimed, changes in the precise embodiment of the inventionshown can be made without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention hasbeen shown.

In said drawings Figure 1 is an elevation, partly in section, of aportion of an umbrella frame, the ribs being shown by full lines inextended positions and, by dotted lines in folded positions.

Fig. 2 is an enlarged section on line 2-2, Fig. 1.

Fig. 3 is an enlarged view partly in evelation and partly in section ofthe stationary sleeve.

Referring to the figures by characters of reference 1 designates theumbrella rod to which is fixedly connected a sleeve 2 provided, neareach of its ends with an annular groove 3 having notches 42 in the wallsthereof. Each of these notched Portions is adapted to receive theflattened ends of rods which are held pivotally to the sleeve by wiressuch as used in the ordinary umbrella constructions. The rods 5extending into the notches 4: in the walls of the upper groove 3constitutes the ribs of the umbrella while the rods 6 which extend intothe notches in the walls of the lower groove 3 constitute reinforcementsand are hingedly connected as at 7 to the ribs 5 at points removedinwardly from the free ends of the ribs. The length of each of the rods6 is less than the distance between the pivot 7 points thereon and alsoto the rods 6, and

extending from the points of connection between these links and the rod6 are stretchers 9 which are pivotally connected in the usual manner toa sleeve 10 slidable on the rod 1. A catch 11 is carried by the rod 1and serves to hold the sleeve 10 against movement when the umbrella isopen.

When the umbrella is folded the rods 5 and '6 and the stretches 9 willlie substantially parallel with and close to the rod 1 so that theumbrella will have the appearance of the usual construction. When it isdesired to open the umbrella the sleeve 10 is pushed along the rod 1 andpast and into engagement with the catch 11. The stretchers 9 will thuscause the rods 5 and 6 to swing outwardly and as the rods 6 are shorterthan the rods and swing about different centers, the said rods 6 willcause the rods 5 to bow while, at the same time, the links 8 will moverelative to the rods and act as positive spacing means between the rods,thereby completing a truss structure capable of resisting strong winds.

What is claimed is An umbrella including a stationary sleeve, rodsarranged in pairs and radiating from the sleeve, the rods of each pairbeing pivotally connected at their inner ends to the respective ends ofthe sleeve, the outer end of one of the rods being pivoted to the secondrod of the pair at a point spaced in from the outer end of said secondrod, spreading links pivotally connected to the intermediate portions ofthe rods of each pair, a movable sleeve, stretchers connecting themovable sleeve to the spreading links, and a rod fixedly connected tothe stationary sleeve and slidably engaged by the movable sleeve.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

EDWIN ROMEYN CHASE.

Witnesses:

JoY KELLY, J. W, Bassoon.

